*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : DF2100000
CHEMICAL NAME : 2-H-1,4-Benzodiazepin-2-one,
5-(o-chlorophenyl)-1,3-dihydro-7-nitro-
CAS REGISTRY NUMBER : 1622-61-3
OTHER CAS REGISTRY NOS. : 106955-87-7
BEILSTEIN REFERENCE NO. : 0759557
REFERENCE : 5-24-04-00351 (Beilstein Handbook Reference)
LAST UPDATED : 199706
DATA ITEMS CITED : 16
MOLECULAR FORMULA : C15-H10-Cl-N3-O3
MOLECULAR WEIGHT : 315.73
WISWESSER LINE NOTATION : T67 GMV JN IHJ CNW KR BG
COMPOUND DESCRIPTOR : Drug
Mutagen
Reproductive Effector
Human
SYNONYMS/TRADE NAMES :
* Antelepsin
* Antilepsin
* 5-(o-Chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one
* 5-(2-Chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one
* 5-(o-Chlorophenyl)-7-nitro-1H-1,4-benzodiazepin-2(3H)-one
* Clonazepam
* Clonopin
* 1,3-Dihydro-7-nitro-5-(2-chlorophenyl)-2H-1,4.benzodiazepin-2-one
* Iktorivil
* Klonopin
* Landsen
* Rivotril
* Ro 5-4023
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - man
DOSE/DURATION : 21 mg/kg/26W-I
TOXIC EFFECTS :
Peripheral Nerve and Sensation - fasciculations
REFERENCE :
PGMJAO Postgraduate Medical Journal. (Blackwell Scientific Pub. Ltd., POB
88, Oxford, UK) V.1- 1925- Volume(issue)/page/year: 63,311,1987
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - man
DOSE/DURATION : 1329 ug/kg/31D-I
TOXIC EFFECTS :
Liver - liver function tests impaired
REFERENCE :
AJGAAR American Journal of Gastroenterology. (American College of
Gastroenterology, Inc., 428 E. Preston St., Baltimore, MD 21202) V.21-
1954- Volume(issue)/page/year: 83,576,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >15 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: 6,235,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 14200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho
Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970-
Volume(issue)/page/year: 11,811,1980
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >10 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: 6,235,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PJPPAA Polish Journal of Pharmacology and Pharmacy. (ARS Polona, POB 1001,
00-068 Warsaw 1, Poland) V.25- 1973- Volume(issue)/page/year: 35,77,1983
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 13300 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho
Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970-
Volume(issue)/page/year: 11,811,1980
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >10 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: 6,235,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >18 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho
Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970-
Volume(issue)/page/year: 11,811,1980
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 7280 mg/kg/26W-I
TOXIC EFFECTS :
Brain and Coverings - changes in brain weight
Kidney, Ureter, Bladder - changes in bladder weight
Endocrine - changes in thyroid weight
REFERENCE :
YACHDS Yakuri to Chiryo. Pharmacology and Therapeutics. (Raifu Saiensu
Shuppan K.K., 2-5-13, Yaesu, Chuo-ku, Tokyo 104, Japan) V.1- 1972-
Volume(issue)/page/year: 4,1441,1976
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE : 1750 ug/kg
SEX/DURATION : female 14-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - biochemical and metabolic
REFERENCE :
LIFSAK Life Sciences. (Pergamon Press Inc., Maxwell House, Fairview Park,
Elmsford, NY 10523) V.1-8, 1962-69; V.14- 1974- Volume(issue)/page/year:
44,493,1989
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 3300 ug/kg
SEX/DURATION : female 6-16 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - Central Nervous System
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
40,365,1977
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE : 8 mg/kg
SEX/DURATION : female 9 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetal death
Reproductive - Specific Developmental Abnormalities - Central Nervous System
REFERENCE :
DGDFA5 Development, Growth & Differentiation. (Japan Pub. Trading Co.
(USA), 1255 Howard St., San Francisco, CA 94103) V.11- 1969-
Volume(issue)/page/year: 22,61,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE : 24 mg/kg
SEX/DURATION : female 6-13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
YACHDS Yakuri to Chiryo. Pharmacology and Therapeutics. (Raifu Saiensu
Shuppan K.K., 2-5-13, Yaesu, Chuo-ku, Tokyo 104, Japan) V.1- 1972-
Volume(issue)/page/year: 5,2457,1977
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X5401
No. of Facilities: 46 (estimated)
No. of Industries: 1
No. of Occupations: 3
No. of Employees: 998 (estimated)
No. of Female Employees: 546 (estimated)
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Negative: Body fluid assay; Host-mediated assay
*** END OF RECORD ***